Mentally Adding and Subtracting 10 or 100

James has 56 pencils. He gets 10 more. How many pencils does James have all together.

• 46

• 66

• 76

• 86

Tags

CCSS.2.NBT.B.6

Hope has 123 thank you cards. She buys 100 more. Now how many thank you cards does Hope have?

• 223

• 222

• 213

• 223

Tags

CCSS.2.NBT.B.7

Kimberly has 89 dollars to spend at the book fair. She only spent 10. How much money does Kimberly have now?

• 99

• 80

• 79

• 69

Tags

CCSS.2.OA.A.1

What is 234 - 100?

• 134

• 134

• 224

• 144

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Add 10 to 45.

• 50

• 55

• 60

• 40

Tags

CCSS.1.NBT.C.5

Add 100 to 200.

• 350

• 250

• 300

• 150

Tags

CCSS.2.NBT.B.8

Subtract 10 from 78.

• 68

• 58

• 88

• 72

Tags

CCSS.1.NBT.C.5

Subtract 100 from 350.

• 200

• 150

• 300

• 250

Tags

CCSS.2.NBT.B.8

If you add 10 to 67, what is the result?

• 77

• 70

• 87

• 57

Tags

CCSS.1.NBT.C.5

If you subtract 100 from 500, what is the result?

• 200

• 300

• 600

• 400

Tags

CCSS.2.NBT.B.8